Evidence map›Paper›PMID 38977981›Full record

ArticleBMC genomics2024

Exploring the genetic basis of anthracnose resistance in Ethiopian sorghum through a genome-wide association study.

Chemeda Birhanu, Gezahegn Girma, Firew Mekbib, Habte Nida, Alemu Tirfessa, Dagnachew Lule, Zelalem Bekeko, Getachew Ayana, Tamirat Bejiga, Gudeta Bedada and 6 more

Abstract read
In one paragraph

Article in BMC genomics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Sustainable Management of Major Fungal Phytopathogens in Sorghum (Journal of fungi (Basel, Switzerland) · 2025
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors.

Chemeda BirhanuOromia Agricultural Research Institute, P.O. Box 81265, Addis Ababa, Ethiopia.
Gezahegn GirmaDepartment of Botany and Plant Pathology, Purdue University, West Lafayette, IN, 47907, USA.
Firew MekbibHaramaya University, P.O. Box 138, Dire Dawa, Ethiopia.
Habte NidaDepartment of Botany and Plant Pathology, Purdue University, West Lafayette, IN, 47907, USA.
Alemu TirfessaEthiopian Institute of Agricultural Research, P.O. Box 2003, Addis Ababa, Ethiopia.
Dagnachew LuleAgricultural Transformation Institute, P.O. Box 708, Addis Ababa, Ethiopia.
Zelalem BekekoHaramaya University, P.O. Box 138, Dire Dawa, Ethiopia.
Getachew AyanaEthiopian Institute of Agricultural Research, P.O. Box 2003, Addis Ababa, Ethiopia.
Tamirat BejigaEthiopian Institute of Agricultural Research, P.O. Box 2003, Addis Ababa, Ethiopia.
Gudeta BedadaOromia Agricultural Research Institute, P.O. Box 81265, Addis Ababa, Ethiopia.
Meseret TolaOromia Agricultural Research Institute, P.O. Box 81265, Addis Ababa, Ethiopia.
Tokuma LegesseEthiopian Institute of Agricultural Research, P.O. Box 2003, Addis Ababa, Ethiopia.
Habtamu AlemuEthiopian Institute of Agricultural Research, P.O. Box 2003, Addis Ababa, Ethiopia.
Solomon AdmasuEthiopian Institute of Agricultural Research, P.O. Box 2003, Addis Ababa, Ethiopia.
Alemnesh BekeleHaramaya University, P.O. Box 138, Dire Dawa, Ethiopia.
Tesfaye MengisteDepartment of Botany and Plant Pathology, Purdue University, West Lafayette, IN, 47907, USA. tmengist@purdue.edu.

Funding

National science foundation IOS-1916893United States Agency for International Development AID-OAA-A-13-00047
6 · The paper itself

Abstract

backgroundSorghum anthracnose is a major disease that hampers the productivity of the crop globally. The disease is caused by the hemibiotrophic fungal pathogen Colletotrichum sublineola. The identification of anthracnose-resistant sorghum genotypes, defining resistance loci and the underlying genes, and their introgression into adapted cultivars are crucial for enhancing productivity. In this study, we conducted field experiments on 358 diverse accessions of Ethiopian sorghum. Quantitative resistance to anthracnose was evaluated at locations characterized by a heavy natural infestation that is suitable for disease resistance screening.

resultsThe field-based screening identified 53 accessions that were resistant across locations, while 213 accessions exhibited variable resistance against local pathotypes. Genome-wide association analysis (GWAS) was performed using disease response scores on 329 accessions and 83,861 single nucleotide polymorphisms (SNPs) generated through genotyping-by-sequencing (GBS). We identified 38 loci significantly associated with anthracnose resistance. Interestingly, a subset of these loci harbor genes encoding receptor-like kinases (RLK), nucleotide-binding leucine-rich repeats (NLRs), stress-induced antifungal tyrosine kinase that have been previously implicated in disease resistance. A SNP on chromosome 4 (S04_66140995) and two SNPs on chromosome 2 (S02_75784037, S02_2031925), localized with-in the coding region of genes that encode a putative stress-induced antifungal kinase, an F-Box protein, and Xa21-binding RLK that were strongly associated with anthracnose resistance. We also identified highly significant associations between anthracnose resistance and three SNPs linked to genes (Sobic.002G058400, Sobic.008G156600, Sobic.005G033400) encoding an orthologue of the widely known NLR protein (RPM1), Leucine Rich Repeat family protein, and Heavy Metal Associated domain-containing protein, respectively. Other SNPs linked to predicted immune response genes were also significantly associated with anthracnose resistance.

conclusionsThe sorghum germplasm collections used in the present study are genetically diverse. They harbor potentially useful, yet undiscovered, alleles for anthracnose resistance. This is supported by the identification of novel loci that are enriched for disease resistance regulators such as NLRs, LRKs, Xa21-binding LRK, and antifungal proteins. The genotypic data available for these accessions offer a valuable resource for sorghum breeders to effectively improve the crop. The genomic regions and candidate genes identified can be used to design markers for molecular breeding of sorghum diseases resistance.

Indexed as

ColletotrichumDisease ResistanceGenome-Wide Association StudyPlant DiseasesPolymorphism, Single NucleotideSorghumEthiopiaGenotypeQuantitative Trait LociAnthracnoseColletotrichum sublineolaDisease-resistanceGenome-wide association studySorghum bicolor

Identifiers

PMID38977981
PMCPMC11229211

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.